Rear extensions in Stockton-on-Tees
2,124 applications since 2020. 1,878 approved and 52 refused. Refused: about 1 in 37 here, about 1 in 7 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Up to 3 m deep on a terrace or semi, 4 m on a detached house
- Up to 6 m or 8 m through the neighbour-consultation route, not on protected land
- No higher than 4 m, and eaves no higher than 3 m within 2 m of a boundary
- Together with other buildings, no more than half the garden and grounds
- Materials similar in appearance to the house
England, houses only. Flats, listed buildings, conservation areas and Article 4 directions change this. The full rules.
Year by year
| Year | Applications | Approved | Refused |
|---|---|---|---|
| 2026 | 231 | 174 | 3 |
| 2025 | 253 | 238 | 2 |
| 2024 | 243 | 227 | 6 |
| 2023 | 277 | 243 | 7 |
| 2022 | 306 | 268 | 12 |
| 2021 | 433 | 394 | 4 |
| 2020 | 381 | 334 | 18 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Pyramid Architectural Designs | 90 | 94 |
| P.D.S. Architectural Plans | 36 | 36 |
| Anderson Ellis Architecture | 15 | 15 |
| k baker design&development ltd | 15 | 15 |
| Stainsby Design | 14 | 14 |
| Architectural Building Consultants | 12 | 12 |
| sjd Architects Ltd | 11 | 12 |
| Loxton Design Limited | 11 | 11 |
| Aj Riley Architects | 10 | 10 |
| Gpdesigns Architectural Services | 9 | 10 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Darlington | 1,929 | 93 | about 1 in 22 |
| Durham | 4,589 | 105 | about 1 in 45 |
| Hartlepool | 3 | 1 | about 1 in 4 |
| Middlesbrough | 6,438 | 481 | about 1 in 14 |
| Redcar and Cleveland | 1,068 | 38 | about 1 in 29 |